Thanks for the advice about beta-blockers Hurdity - once again, nothing from the prescribing GP about any of this, they just hand them out like smarties. I know as much as I want to know already about benzo addiction, having been down that path myself a few years ago (in fact during my first, perimenopausal experience of hormonal anxiety). Once I'd finally got off them I swore I'd never touch them again, but it shows the degree of desperation I'm now feeling that I've had to give in and resort to them again, with great caution, because it seems nothing else works for me and at times the anxiety is unbearable.
Dr. Gray is very non-committal about whether getting my estrogen level much much higher than the current 250ish will alleviate the anxiety, but I understand Prof. Studd advocates levels of 800 - 1000 in these kind of cases. She maintains that that sort of level would only be achievable using estrogen implants, but I thought Prof. Studd generally prescribed Estrogel so now don't know what to think.